Index: comm_data.lht
===================================================================
--- comm_data.lht	(revision 25302)
+++ comm_data.lht	(revision 25303)
@@ -167,7 +167,7 @@
 				type=li
 				ver = {>=4}
 				li:children {
-					ha:unused          = { valtype=none;  desc={placeholder for markign uunsed slot to keep slot indices for early lihata v4 }}
+					ha:unused          = { valtype=none;  desc={placeholder for marking unused slot to keep slot indices for early lihata v4 }}
 					ha:ps_proto_v4.PID {
 						type=ha
 						desc={padstack prototype specification, as introduced in lihata board v4}
Index: data.svg
===================================================================
--- data.svg	(revision 25302)
+++ data.svg	(revision 25303)
@@ -2977,7 +2977,7 @@
 <!-- /lht_tree_doc/comm/data/children/padstack_prototypes/children/unused -->
 <g id="node181" class="node">
 <title>/lht_tree_doc/comm/data/children/padstack_prototypes/children/unused</title>
-<g id="a_node181"><a xlink:href="tree.html#/lht_tree_doc/comm/data/children/padstack_prototypes/children/unused" xlink:title="placeholder for markign uunsed slot to keep slot indices for early lihata v4 ">
+<g id="a_node181"><a xlink:href="tree.html#/lht_tree_doc/comm/data/children/padstack_prototypes/children/unused" xlink:title="placeholder for marking unused slot to keep slot indices for early lihata v4 ">
 <ellipse fill="none" stroke="#000000" cx="7697.1838" cy="-1520.6947" rx="38.7821" ry="26.7407"/>
 <text text-anchor="middle" x="7697.1838" y="-1524.4947" font-family="Times,serif" font-size="14.00" fill="#000000">unused</text>
 <text text-anchor="middle" x="7697.1838" y="-1509.4947" font-family="Times,serif" font-size="14.00" fill="#000000">none</text>
Index: tree.html
===================================================================
--- tree.html	(revision 25302)
+++ tree.html	(revision 25303)
@@ -419,7 +419,7 @@
 <tr id="/lht_tree_doc/comm/flags_text/children/dyntext"><td> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;dyntext <td> <a href="#valtype:flag">flag</a> <td> &nbsp; <td> For text: dynamic string (substitute %patterns%)
 <tr id="/lht_tree_doc/comm/flags_text/children/floater"><td> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;floater <td> <a href="#valtype:flag">flag</a> <td> &nbsp; <td> subc part can be moved after subc placing
 <tr id="/lht_tree_doc/comm/data/children/padstack_prototypes"><td> &nbsp;li:padstack_prototypes <td> &nbsp; <td> >=4 <td> 
-<tr id="/lht_tree_doc/comm/data/children/padstack_prototypes/children/unused"><td> &nbsp;&nbsp;unused <td> <a href="#valtype:none">none</a> <td> &nbsp; <td> placeholder for markign uunsed slot to keep slot indices for early lihata v4 
+<tr id="/lht_tree_doc/comm/data/children/padstack_prototypes/children/unused"><td> &nbsp;&nbsp;unused <td> <a href="#valtype:none">none</a> <td> &nbsp; <td> placeholder for marking unused slot to keep slot indices for early lihata v4 
 <tr id="/lht_tree_doc/comm/data/children/padstack_prototypes/children/ps_proto_v4.PID"><td> &nbsp;&nbsp;ha:ps_proto_v4.PID <td> &nbsp; <td> &nbsp; <td> padstack prototype specification, as introduced in lihata board v4
 <tr id="/lht_tree_doc/comm/data/children/padstack_prototypes/children/ps_proto_v4.PID/children/hdia"><td> &nbsp;&nbsp;&nbsp;hdia <td> <a href="#valtype:coord">coord</a> <td> &nbsp; <td> hole diameter; 0 means no hole 
 <tr id="/lht_tree_doc/comm/data/children/padstack_prototypes/children/ps_proto_v4.PID/children/htop"><td> &nbsp;&nbsp;&nbsp;htop <td> <a href="#valtype:integer">integer</a> <td> &nbsp; <td> hole start: copper layer index from the top (positive) or bottom (negative) copper layer (0 means top copper layer)
Index: tree.txt
===================================================================
--- tree.txt	(revision 25302)
+++ tree.txt	(revision 25303)
@@ -408,7 +408,7 @@
       dyntext           flag         For text: dynamic string (substitute %patterns%)
       floater           flag         subc part can be moved after subc placing
  li:padstack_prototypes          >=4
-  unused                none         placeholder for markign uunsed slot to keep slot indices for early lihata v4
+  unused                none         placeholder for marking unused slot to keep slot indices for early lihata v4
   ha:ps_proto_v4.PID                 padstack prototype specification, as introduced in lihata board v4
    hdia                 coord        hole diameter; 0 means no hole
    htop                 integer      hole start: copper layer index from the top (positive) or bottom (negative) copper layer (0 means top copper layer)